Layers that have a backdrop-filter should paints contents

third_party/WebKit/Source/core/paint/TableCellPainter.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/paint/TableCellPainter.h"
 
 #include "core/layout/LayoutTableCell.h"
 #include "core/paint/BlockPainter.h"
 #include "core/paint/BoxPainter.h"
 #include "core/paint/LayoutObjectDrawingRecorder.h"
@@ skipping 171 matching lines @@
     }
 }
 
 void TableCellPainter::paintBoxDecorationBackground(const PaintInfo& paintInfo, const LayoutPoint& paintOffset)
 {
     LayoutTable* table = m_layoutTableCell.table();
     if (!table->collapseBorders() && m_layoutTableCell.style()->emptyCells() == HIDE && !m_layoutTableCell.firstChild())
         return;
 
     bool needsToPaintBorder = m_layoutTableCell.styleRef().hasBorderDecoration() && !table->collapseBorders();
-    if (!m_layoutTableCell.hasBackground() && !m_layoutTableCell.styleRef().boxShadow() && !needsToPaintBorder)
+    if (!m_layoutTableCell.hasBackground() && !m_layoutTableCell.styleRef().hasBackdropFilter() && !m_layoutTableCell.styleRef().boxShadow() && !needsToPaintBorder)
         return;
 
     if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(paintInfo.context, m_layoutTableCell, DisplayItem::BoxDecorationBackground, paintOffset))
         return;
 
     LayoutRect visualOverflowRect = m_layoutTableCell.visualOverflowRect();
     visualOverflowRect.moveBy(paintOffset);
     // TODO(chrishtr): the pixel-snapping here is likely incorrect.
     LayoutObjectDrawingRecorder recorder(paintInfo.context, m_layoutTableCell, DisplayItem::BoxDecorationBackground, pixelSnappedIntRect(visualOverflowRect), paintOffset);
 
@@ skipping 32 matching lines @@
 LayoutRect TableCellPainter::paintBounds(const LayoutPoint& paintOffset, PaintBoundOffsetBehavior paintBoundOffsetBehavior)
 {
     LayoutPoint adjustedPaintOffset = paintOffset;
     if (paintBoundOffsetBehavior == AddOffsetFromParent)
         adjustedPaintOffset.moveBy(m_layoutTableCell.location());
     return LayoutRect(adjustedPaintOffset, LayoutSize(m_layoutTableCell.pixelSnappedSize()));
 }
 
 } // namespace blink